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Code Issues Releases Wiki Activity

Switch the basic operators into individual classes.

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This commit is contained in:
Danila Fedorin
2017-09-21 13:39:38 -07:00
parent 4fd8f7badf
commit 81d0999c11
5 changed files with 92 additions and 45 deletions
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21
core/src/main/kotlin/org/nwapw/abacus/plugin/standard/OperatorAdd.kt Normal file
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package org.nwapw.abacus.plugin.standard
import org.nwapw.abacus.context.MutableEvaluationContext
import org.nwapw.abacus.function.NumberOperator
import org.nwapw.abacus.function.OperatorAssociativity
import org.nwapw.abacus.function.OperatorType
import org.nwapw.abacus.number.NumberInterface
/**
* The addition operator.
*
* This is a standard operator that simply performs addition.
*/
class OperatorAdd: NumberOperator(OperatorAssociativity.LEFT, OperatorType.BINARY_INFIX, 0) {
override fun matchesParams(context: MutableEvaluationContext, params: Array<out NumberInterface>) =
params.size == 2
override fun applyInternal(context: MutableEvaluationContext, params: Array<out NumberInterface>) =
params[0] + params[1]
}

21
core/src/main/kotlin/org/nwapw/abacus/plugin/standard/OperatorDivide.kt Normal file
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package org.nwapw.abacus.plugin.standard
import org.nwapw.abacus.context.MutableEvaluationContext
import org.nwapw.abacus.function.NumberOperator
import org.nwapw.abacus.function.OperatorAssociativity
import org.nwapw.abacus.function.OperatorType
import org.nwapw.abacus.number.NumberInterface
/**
* The division operator.
*
* This is a standard operator that simply performs division.
*/
class OperatorDivide: NumberOperator(OperatorAssociativity.LEFT, OperatorType.BINARY_INFIX, 1) {
override fun matchesParams(context: MutableEvaluationContext, params: Array<out NumberInterface>) =
params.size == 2
override fun applyInternal(context: MutableEvaluationContext, params: Array<out NumberInterface>) =
params[0] / params[1]
}

21
core/src/main/kotlin/org/nwapw/abacus/plugin/standard/OperatorMultiply.kt Normal file
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package org.nwapw.abacus.plugin.standard
import org.nwapw.abacus.context.MutableEvaluationContext
import org.nwapw.abacus.function.NumberOperator
import org.nwapw.abacus.function.OperatorAssociativity
import org.nwapw.abacus.function.OperatorType
import org.nwapw.abacus.number.NumberInterface
/**
* The multiplication operator.
*
* This is a standard operator that simply performs multiplication.
*/
class OperatorMultiply: NumberOperator(OperatorAssociativity.LEFT, OperatorType.BINARY_INFIX, 1) {
override fun matchesParams(context: MutableEvaluationContext, params: Array<out NumberInterface>) =
params.size == 2
override fun applyInternal(context: MutableEvaluationContext, params: Array<out NumberInterface>) =
params[0] * params[1]
}

21
core/src/main/kotlin/org/nwapw/abacus/plugin/standard/OperatorSubtract.kt Normal file
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package org.nwapw.abacus.plugin.standard
import org.nwapw.abacus.context.MutableEvaluationContext
import org.nwapw.abacus.function.NumberOperator
import org.nwapw.abacus.function.OperatorAssociativity
import org.nwapw.abacus.function.OperatorType
import org.nwapw.abacus.number.NumberInterface
/**
* The subtraction operator.
*
* This is a standard operator that performs subtraction.
*/
class OperatorSubtract: NumberOperator(OperatorAssociativity.LEFT, OperatorType.BINARY_INFIX, 0) {
override fun matchesParams(context: MutableEvaluationContext, params: Array<out NumberInterface>) =
params.size == 2
override fun applyInternal(context: MutableEvaluationContext, params: Array<out NumberInterface>) =
params[0] - params[1]
}